At this time, Zhang San had already replaced the 10,000-stone gunboat with the two kings of the Wa Kingdom and was watching the rapid landing of the Ryukyu Army, and the two Wa kings were worried when they saw the efficiency of the Ryukyu Army and the new weapons that had just appeared.

In more than ten minutes, ten formed battalions disembarked, and except for the five battalions who continued to guard the landing point, the remaining five began to rush in the direction where the army had just arrived, and that place was Seoul, the capital of Goryeo.

At this time, the top and bottom of Goryeo had received news that after the first batch of Wangcheng Janissaries sent by them were defeated, Goryeo was even more chaotic, and it happened that this was the time of the Shang Dynasty.

In addition to ordering the gates of the capital to be closed, the court was divided into two factions, one was for the king to immediately order the northern troops to return to King Kyojin to resist the invasion of the Ryukyus.

Others insisted that the Ryukyus had only taken advantage of the surprise attack, and that as long as the Goryeo Fortress Guards took it seriously, they would definitely be able to repel the invading enemy, and some people took the opportunity to join the Janissaries to lead the war.

The commander of the Praetorian Guard stayed there and wanted to say nothing, but if he didn't say anything about the defeat in the morning, he would mislead everyone and make a wrong decision, so he told everyone the story of the war carefully.

When everyone heard that the 10,000 Praetorian Guards did not break through the opponent's formation of 2,000 people, and lost nearly 4,000 people, they were a little incredulous, and some officials felt that this guy was exaggerating the enemy's attempt to evade responsibility.

Of course, there are also those who have a good relationship with the commander of the forbidden army, who are more sober, and feel that if what the commander said is true, then Goryeo will indeed transfer troops to King Qin, but everyone thinks that the high walls of Seoul are thick, and there should be no problem in a short time.

So these people quarreled in the palace now, and when the five battalions of the Ryukyu Army arrived outside the city, they did not attract the slightest attention from these people, what do they think can be done with only 5,000 people?

The gunboats on the Han River were already in position, and when the second batch of ten battalions arrived under the city of Seoul, the gunboats began to fire, and according to the operating norms of the tactical drill code, all the artillery siege fire was concentrated in a few sections of the city wall, and it was necessary to collapse the opponent's city wall in a short time.

At present, the rate of fire of the Ryukyu artillery is about one round a minute, and a skilled gunner can do three rounds in two minutes, and after each one or two shots, the ship turns around and changes to the gun on the other side, so that the artillery on this side can rest and cool down.

Therefore, when all the Ryukyu troops disembarked and arrived at the city of Seoul, the naval artillery had already bombarded more than 40 rounds, and the wall of the Seoul river was already mottled, and the defenders of Seoul were trembling and praying for the blessing of the gods for this new weapon.

The king of Goryeo in the palace listened to the rumbling cannons and walked around anxiously, when he suddenly thought of something and asked the eunuchs beside him: "Didn't the Ryukyu envoy send an ultimatum that day?" You brought it to me, I want to see it. ”

When the eunuch heard this, he was immediately glad that he had not littered, and hurriedly went to the little eunuch to ask who he had handed over the ultimatum of the day, and then the little eunuch hurriedly went to the archives to find it, and a quarter of an hour later, the officials of the archives finally turned out an ultimatum.

When the king of Goryeo took the ultimatum and opened it, he saw that the first line on it read: 'Letter from the King of Ryukyu to the King of Goryeo. ’

Further down: 'The day before yesterday, our Ryukyu merchant went to your country to buy cattle and was harassed by your country for no reason, and my king is very angry about this, and today I would like to inform the king of Goryeo of the following matters: First, immediately stop such unwarranted trouble, and make compensation to our merchants. Secondly, your country must ensure that similar incidents do not occur in the future and apologize for this act. Third, in the future, the Ryukyus and Goryeo will have friendly trade, and Goryeo must ensure that the normal trade of our Ryukyu merchants in your country is protected by your country. The above three articles must be replied to within 10 days of receiving this letter, and if it expires, it will be regarded as a provocation to the Ryukyus. ’

Don't say that this sentence was specially added by Zhang San, but Zhang San thought it was a very deterrent sentence, and the Goryeo monarchs and ministers didn't even see it, and now the king of Goryeo didn't put his mind on this sentence when he saw this ultimatum.

These three articles must have been unacceptable to the king of Goryeo a few days ago, but now that the enemy is approaching the city, he thinks that it is enough to ask you to make it clear that we can sit down and discuss, as for fighting for a merchant?

The king of Goryeo now regrets that he didn't take a look at this ultimatum in the first place, and if he had looked at it, maybe he wouldn't have been so passive now, but he didn't think that even if he had opened it and seen it, he would have laughed it off.

So this war was doomed, but the king of Goryeo didn't think that he would lose until now, but he just felt that the Ryukyu army had gained an advantage by a shameless sneak attack, and when his army came, he would definitely clean up the opponent.

This kind of atmosphere was also permeated throughout Goryeo, so even if they knew that the Ryukyu army had surrounded Seoul on all sides, the monarchs and ministers of Goryeo did not get nervous, and they did not feel anything when they heard the soldiers report that Ryukyu had bombarded the walls of Goryeo with a strange weapon.

These civil officials did not go up to the city walls, and in their opinion the so-called strange weapons were just special catapults, and the reason why the soldiers did not know them was that they did not know them at all.

The bombardment of the cannons continued, and Zhang San and the two kings of the Japanese kingdom were watching from the ship, in fact, there were many ways to break through Seoul, and the reason why Zhang San adopted this dignified method was to show the kings of the Japanese kingdom and make them afraid of the power of the Ryukyus.

Jang San had already done the test in the Ryukyus, and this kind of wall would inevitably collapse in just four hours at most, so all you need to do is just wait patiently, and Jang San felt that if everything went well, after the sun set, he would be able to stand in the palace of Goryeo and lecture the king of Goryeo.

Compared with the speed and speed of the Ryukyu Army, the speed of the Japanese soldiers disembarking is much slower, and after disembarking, the soldiers cannot find the generals, they will not be able to find the soldiers, they are all standing on the dock in chaos, and it is estimated that it will be difficult to restore the establishment in half a day.

This is the normal performance of the landing in this era, and the Ryukyu Army is ahead of its time, and this kind of efficiency is also the result of fighting one war after another and summarizing one drill after another.

Compared with other armies of the same period, the biggest advantage of the Ryukyu Army was that it had a general staff, and the role of the staff was not just to give advice during war. He also studied various tactics, formulated various tactics and strategies, and innovated the organization of various training and combat methods.

At present, even the axle of a logistics transport vehicle has special staff officers studying how to increase the intensity and how to improve efficiency, so the greatest benefit and the best thing about the staff is that the soldiers and generals who used to passively study war in the course of war have become specialized personnel who specialize in studying war and studying and improving combat effectiveness and efficiency.